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VMware vMotion, how it works – Part 1 an Introduction



Though vMotion and Storage vMotion each serve a different purpose, they feature a large amount of overlapping technology. Therefore these two vSphere functions fit well together in one chapter. Both technologies are proactive. This means vMotion is used to migrate virtual machines between running ESX-hosts while Storage vMotion migrates the data between fully functional data stores on the virtual machines. Both vSphere features are no longer usable when the source or the destination is offline.

VMware vMotion and Storage vMotion effectively protect against downtime because they can bridge maintenance windows on the hosts and datastores without any interruption of service. However, contrary to popular speculation, they are not tools designed to increase high availability.


Readers have certainly already heard of VMware vMotion, the live migration function within VMware vSphere , so this introduction will be brief. vMotion is the tool with which active virtual systems can be migrated from one ESX-host to another without any interruption to the virtual machines themselves or to their provided services. With vSphere 5.x previous limits on simultaneous migrations of virtual machines on an ESXi-host- and datastore-basis have been lifted. This procedure was previously only possible as a cold migration process with offline VMs. 

Read the entire article here, VMware vMotion, how it works – Part 1 Introduction

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opvizor opvizor is SaaS company that specializes in solutions for virtualization and cloud computing. These solutions help businesses automate and manage their virtual IT infrastructures within heterogeneous data processing centers, as well as solutions for the prevention of errors and failures. opvizor’s offices are located in Vienna, Austria and Houston, TX, USA. Dennis Zimmer is founder and CEO of the opvizor group.

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